Improvement in bending-machines



S. W. KIMBLE.

Bending-Machines.

N0. 144,109, Patented Oct. 28, I873.

* mu j IlllHi Anumeys.

UNITED $TATES PATENT CFFIGE.

SMITH W. KDIBLE, OF SPRINGFIELD, ILLINOIS.

IMPROVEMENT IN BENDlNG-MACHINES.

Specification forming part of Letters Patent No. 144,109, dated October28,1873; application filed September 13, 1873.

To all whom it may concern:

Be it known that I, SMITH W. KIMBLE, of Springfield, in the county ofSangamon and State of Illinois, have invented a new andImprovedBending-Machine; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawing forming a part of this specification, in which-Figure 1 is a longitudinal vertical section in line 0c 00 of Fig. 2.Fig. 2 is a top view. Figs. 3 and 4 are detail views.

The invention relates to means whereby corn-planter runners may becheaply, conveniently, and effectually bent and brought into the desiredshape, as hereinafter fully described and pointed out in the claim.

A represents a base or platform, from which rises an upright frame, B.On the latter is located the former 0, having the gage-pins 0 near theinner end of the groove 0, in which the blank is entered, and a plainsurface, 0 with side bevels-c 0 one on each side thereof. D is a barprojectmg over the former, and whose subjacent surface approachesgradually closer to the former, to allow the bending-roll E to bear uponthe tapering blank, and, as it moves over, force it down to the former.F F are side rolls, which, as well as roll E, are placed in the slot ofan arm, 9 of the segment G, pivoted at g to the frame. The roll E, how.-ever, is located in a frame, I, which has a friction-roll, e, at top,that bears against the bar D, side arms 6 0 that enable it to slide inguides e c and a cord, 0 which is looped over a spring, 6 H is a pivotedyoke, which is passed over one end of the blank to hold it down in thegroove 0. The segment-arm G has a friction arc-surface, 9, against whichworks a friction-pinion, 9 on a rock-shaft, that is itself operated bytwo pulleys, one with a straight and the other with a crossed belt.

The shaft, however, may be rocked or vibrated by any suitable means,this forming no part of my invention.

The tapering runner-blank is inserted with the thinner end foremost,while the thicker against the bar D, causes the blank to take the exactbend of the former. When the segment is returned to its starting-point,the roll E is lifted by its spring from the blank, and allows thefinished runner to be removed and another blank inserted.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A vibratory segment provided with slotted arms, between which are placedthe side rolls F and reciprocating top roll E, combined, as described,with a curved convex former, C, and a superposed bar, D, the subjacentsurface of the latter gradually approaching the top of the former fromfront to rear, as set forth.

SMITH W. KIMBLE.

Witnesses:

E. KNIGHT, ABR. H. HELLER, B. F. GooDRIoH.

